EP2158076A1 - Trennprodukt - Google Patents

Trennprodukt

Info

Publication number
EP2158076A1
EP2158076A1 EP07788748A EP07788748A EP2158076A1 EP 2158076 A1 EP2158076 A1 EP 2158076A1 EP 07788748 A EP07788748 A EP 07788748A EP 07788748 A EP07788748 A EP 07788748A EP 2158076 A1 EP2158076 A1 EP 2158076A1
Authority
EP
European Patent Office
Prior art keywords
basic substrate
release product
release
coating
coating layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07788748A
Other languages
English (en)
French (fr)
Other versions
EP2158076B1 (de
EP2158076A4 (de
Inventor
Anu NÄRHI
Jukka Kivivasara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UPM Kymmene Oy
Original Assignee
UPM Kymmene Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UPM Kymmene Oy filed Critical UPM Kymmene Oy
Publication of EP2158076A1 publication Critical patent/EP2158076A1/de
Publication of EP2158076A4 publication Critical patent/EP2158076A4/de
Application granted granted Critical
Publication of EP2158076B1 publication Critical patent/EP2158076B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/001—Release paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material

Definitions

  • the present invention relates to a release product comprising a basic substrate and a siliconized release layer.
  • the basic substrate has a first side and a second side.
  • the siliconized release layer has been applied on the first side of the basic substrate.
  • a release product usually comprises a paper provided with a silicone coating.
  • plastic material can also be used instead of paper.
  • the release product is used as a backing paper for self-adhesive labels which are either paper, or plastic material.
  • the release product and the face material attached to the release product form a self-adhesive laminate web.
  • a problem related to this product is that the silicone coating tend to migrate through the basic substrate.
  • the face material of the laminate web may be contaminated with silicone. This causes problems e.g. in printing, or with metallised layers. In order to avoid such problems, the release product of the invention has been developed.
  • the release product is characterized in that the release product comprises a coating layer which has been applied directly on either the first side of the release product, or on the second side of the release product, the coating layer comprising silica particles and a binder.
  • the coating layer absorbs the problematic silicone before it causes harmful effects. Thus, printing problems are avoided.
  • the coating layer comprises inorganic particles and a binder.
  • the inorganic particles contain silica (SiO 2 ) particles.
  • the silica particles may be a silica gel, a colloidal silica, a precipitated silica, or a fumed silica.
  • the silica gel is a highly absorbent form of silicon dioxide. Instead, or in addition to silica particles it is possible to use aluminium hydroxide particles (AI(OH) 3 ).
  • the preferred silica particles are porous amorphous silicic anhydride particles, i.e. silica gel.
  • the particles may have an average particle size from 0.3 to 20 ⁇ m, preferably from 0.3 to 10 ⁇ m, more preferably the average particle size is from 0.3 to 8 ⁇ m.
  • the surface area may be at least 200 m 2 /g, preferably at least 300 m 2 /g, and the bulk density at least 0.15 g/cm 3 , preferably at least 0.30 g/cm 3 .
  • a product having an average particle size of 4 ⁇ m, a surface area of 340 m 2 /g and a bulk density of 1.77 g/cm 3 was well suitable for this purpose.
  • the binder forms a medium to the silica particles.
  • the binder preferably comprises natural polymers or their derivatives, such as starch, carboxymethyl cellulose (CMC), or mixtures of those. Starch is rather cheap material to be used whereas CMC makes the runnability of the coating line better.
  • the coating composition may comprise other inorganic particles, such as kaolin or talc, to add impermeability to the coating layer.
  • the coating composition may also comprise a medium which brings impermeability to the coating layer for its part.
  • a medium may be e.g. polyvinyl alcohol, or styrene/butadiene copolymer.
  • the coating composition may comprise a cross-linking agent whose amount is relative to the total amount of the binder comprising the natural polymers and their derivatives.
  • the purpose of the cross- linking agent in the coating composition is to prevent dusting and sticking to calender rolls.
  • the coating layer is applied directly on the basic substrate, i.e. there is not e.g. plastic layers between the basic substrate, i.e. the base paper or another suitable base material, and the coating layer. However, there may be surface sizing layers, or other coated layers between the basic substrate and the coating layer.
  • the coating layer is usually a one layer coating, but a multilayer coating is also possible.
  • the base paper may be a glassine paper, or a calendered paper.
  • a silicone layer is applied on the first side of the paper and cured.
  • the coating layer is applied to the second side of the release paper by methods which are known as such, for example blade coating, airbrush coating, curtain coating, or coating in a film or size press.
  • the coating may also be applied on the first side of the release paper under the silicone coating, i.e. between the silicone layer and the basic substrate. Preferably, however, the coating is applied on the second side of the release paper.
  • the grammage of the coating layer may be from 0.7 to 1.4 g/m 2 .
  • the typical composition of the coating composition comprises at least silica particles and a binder comprising starch or its derivatives, cmc, or their mixtures. There is usually also a cross-linking agent in order to prevent dusting and sticking to calender rolls.
  • the coating composition may also comprise inorganic particles different from the silica particles, such as kaolin. Table 1. Coating compositions.
  • the base paper was a glassine paper having a grammage of 64 g/m 2 .
  • the grammage of the coating layer was 1.1 g/m 2 .
  • the used silica particles had an average particle size of about 4 ⁇ m, a surface area of about 340 m 2 /g, and a bulk density of about 1.77 g/cm 3 .
  • the coating compositions were applied on the second side of the release paper. All the coating layers showed desired properties, i.e. the coating layers were efficient to absorb contaminants.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Adhesive Tapes (AREA)
EP07788748A 2007-06-15 2007-06-15 Trennprodukt Active EP2158076B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2007/050363 WO2008152182A1 (en) 2007-06-15 2007-06-15 A release product

Publications (3)

Publication Number Publication Date
EP2158076A1 true EP2158076A1 (de) 2010-03-03
EP2158076A4 EP2158076A4 (de) 2011-06-01
EP2158076B1 EP2158076B1 (de) 2013-03-06

Family

ID=40129284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788748A Active EP2158076B1 (de) 2007-06-15 2007-06-15 Trennprodukt

Country Status (5)

Country Link
US (1) US10428462B2 (de)
EP (1) EP2158076B1 (de)
CN (1) CN101720278B (de)
BR (1) BRPI0721814B1 (de)
WO (1) WO2008152182A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011117831A1 (de) 2011-02-15 2012-08-16 Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Trennfolie mit rauher Oberflächenstruktur
DE102011089565A1 (de) * 2011-12-22 2013-06-27 Tesa Se Liner zum Schutz von Klebemassen
DE102011089566A1 (de) 2011-12-22 2013-06-27 Tesa Se Liner zum Schutz von Klebemassen
DE102014200948A1 (de) * 2014-01-20 2015-07-23 Tesa Se Verfahren zum Entfernen von Permeaten aus Flächengebilden
CN105109156A (zh) * 2015-08-17 2015-12-02 浙江欧仁新材料有限公司 一种可根据需要调节离型力的离型膜及其制作方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0276048A1 (de) * 1987-01-06 1988-07-27 The Wiggins Teape Group Limited Trennpapier
EP0605840A2 (de) * 1992-12-25 1994-07-13 Mitsubishi Paper Mills, Ltd. Tintenstrahl-Aufzeichnungsblatt
EP1249533A1 (de) * 2001-04-14 2002-10-16 The Dow Chemical Company Verfahren zur Herstellung von mehrschichtig beschichtetem Papier oder Pappe
US20040062913A1 (en) * 2002-09-27 2004-04-01 Dai Nippon Print. Co., Ltd. Composition for matte layer formation, release sheet using the same, and synthetic leather produced using said release sheet

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US1072664A (en) * 1913-09-09 A R Silverston Airship.
US4074000A (en) * 1976-10-27 1978-02-14 Xerox Corporation Pressure sensitive adhesive drafting films for use in electrostatographic copiers
JPS5769091A (en) * 1980-10-17 1982-04-27 Ricoh Co Ltd Peel-off type heatsensitive recording paper
US4622566A (en) * 1984-04-26 1986-11-11 Sanyo-Kokusaku Pulp Co., Ltd. Heat-sensitive recording material
US4577204A (en) * 1984-05-25 1986-03-18 Ricoh Electronics, Inc. Thermosensitive recording label
JP2995637B2 (ja) 1990-12-28 1999-12-27 王子製紙株式会社 粘着シート
JPH07290818A (ja) * 1994-03-04 1995-11-07 Mitsubishi Paper Mills Ltd インクジェット記録用タックシート
US6632488B2 (en) * 1998-02-26 2003-10-14 Oji Paper Co., Ltd Ink jet recording material
JP4480814B2 (ja) * 1999-07-29 2010-06-16 日東電工株式会社 接着シート類
EP1088789A3 (de) * 1999-09-28 2002-03-27 Heraeus Quarzglas GmbH & Co. KG Poröse Granulate aus Siliciumdioxid, deren Herstellungsverfahren und deren Verwendung bei einem Verfahren zur Herstellung von Quarzglas
US6545543B2 (en) * 2001-07-06 2003-04-08 Remec, Inc. Small aspect ratio MMIC power amplifier layout
US6846538B2 (en) 2001-12-27 2005-01-25 Ricoh Company, Ltd. Composite sheet, method of preparing same, and adhesive label sheet assembly having same
FI20020521A0 (fi) 2002-03-19 2002-03-19 Raisio Chem Oy Paperin pintakäsittelykoostumus ja sen käyttö
CN1330559C (zh) * 2002-06-12 2007-08-08 日本板硝子株式会社 薄片形式的多孔金属氧化物材料、其生产方法和包含它的化妆品、涂布材料、树脂组合物、油墨组合物和纸张
JP4234473B2 (ja) 2003-03-26 2009-03-04 シャープ株式会社 液晶パネルおよびその製造方法
FI20030976A (fi) * 2003-06-30 2004-12-31 M Real Oyj Päällystetty pohjapaperi ja menetelmä päällystetyn pohjapaperin valmistamiseksi
US8582125B2 (en) * 2003-07-22 2013-11-12 Hewlett-Packard Development Company, L.P. Variable support structure and media sheet separator
EP1721662A4 (de) * 2004-02-05 2012-11-07 Taiyo Kagaku Kk Adsorptionsvermögen verleihendes mittel, enthaltend poröses siliciumdioxid
JP4655533B2 (ja) * 2004-08-02 2011-03-23 ソニー株式会社 画像処理装置および方法、記録媒体、並びにプログラム
JP2006116797A (ja) * 2004-10-21 2006-05-11 Mitsubishi Paper Mills Ltd 水性顔料インク用インクジェット記録材料
JP4954519B2 (ja) * 2004-11-12 2012-06-20 富士フイルム株式会社 インクジェット記録用媒体、及びインクジェット記録用媒体の製造方法
US20100189993A1 (en) * 2005-06-24 2010-07-29 Nippon Kasei Chemical Company Limited Coating composition, method for making the same, resin forming product, and method for making the resin forming product

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0276048A1 (de) * 1987-01-06 1988-07-27 The Wiggins Teape Group Limited Trennpapier
EP0605840A2 (de) * 1992-12-25 1994-07-13 Mitsubishi Paper Mills, Ltd. Tintenstrahl-Aufzeichnungsblatt
EP1249533A1 (de) * 2001-04-14 2002-10-16 The Dow Chemical Company Verfahren zur Herstellung von mehrschichtig beschichtetem Papier oder Pappe
US20040062913A1 (en) * 2002-09-27 2004-04-01 Dai Nippon Print. Co., Ltd. Composition for matte layer formation, release sheet using the same, and synthetic leather produced using said release sheet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199240 Thomson Scientific, London, GB; AN 1992-327522 XP002615033, & JP 4 234473 A (KANZAKI PAPER MFG CO LTD) 24 August 1992 (1992-08-24) *
See also references of WO2008152182A1 *

Also Published As

Publication number Publication date
BRPI0721814B1 (pt) 2017-12-26
EP2158076B1 (de) 2013-03-06
US10428462B2 (en) 2019-10-01
US20100261006A1 (en) 2010-10-14
EP2158076A4 (de) 2011-06-01
CN101720278B (zh) 2015-11-25
WO2008152182A1 (en) 2008-12-18
CN101720278A (zh) 2010-06-02
BRPI0721814A2 (pt) 2013-02-13

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